Siemens 3RS1000-2CK10 Temperature Monitoring Relay

Siemens 3RS1000-2CK10 is a compact temperature-monitoring relay that uses a PT100 resistance-temperature detector to monitor process temperatures and trip a relay when a preset limit is exceeded. With overshoot protection configured as a single threshold value, it provides a simple, reliable temperature limit function in control panels. The device is 22.5 mm wide, designed for mounting in standard enclosures, and operates from 110/230 V AC. It provides 1 normally open and 1 normally closed contact for signaling or interlock purposes, with spring-loaded terminals for secure, easy connections. The sensor range is 0 °C to 100 °C, making it suitable for monitoring typical PT100-based temperatures in industrial equipment, heating elements, ovens, motors, and other automation applications where a straightforward temperature limit is required.